Indonesian language instruction at SDN 2 Sukaratu faces unequal technology access among sixth-grade students, while a student survey indicated a continued need for face-to-face guidance. This study develops a blended learning model combining offline instruction using the STAD cooperative model with online instruction using a digital-based Project Based Learning (PjBL) model for the Persuasive Text unit in Grade VI, and examines its feasibility through expert validation. The study used a Research and Development approach following the ADDIE model adapted into five procedural stages: needs analysis, design, development, implementation, and evaluation/revision. The products were a learning website/Learning Management System (LMS) and an e-module (e-module). Feasibility was examined through validation by three experts (instructional design, content, multimedia) using scaled questionnaires, followed by a one-to-one trial with 20 students. Expert validation showed feasibility scores of 84.2% (design), 86.5% (content), and 83.8% (multimedia), all in the very feasible category based on established percentage-interpretation criteria. The one-to-one trial showed a mean N-Gain of 0.61 (medium category). The digital-based STAD-PjBL blended learning model is feasible as an alternative Indonesian language teaching strategy for elementary schools with limited technology access, while its effectiveness on learning outcomes requires further study based on field-trial data.
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